Description
A vulnerability was found in subscription-manager that allows local privilege escalation due to inadequate authorization. The D-Bus interface com.redhat.RHSM1 exposes a significant number of methods to all users that could change the state of the registration. By using the com.redhat.RHSM1.Config.SetAll() method, a low-privileged local user could tamper with the state of the registration, by unregistering the system or by changing the current entitlements. This flaw allows an attacker to set arbitrary configuration directives for /etc/rhsm/rhsm.conf, which can be abused to cause a local privilege escalation to an unconfined root.
Published: 2023-08-23
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

Vendor Workaround

A workaround is to mask rhsm.service using: ~~~ systemctl mask rhsm.service ~~~ When the rhsm.service is masked, then no D-Bus call cannot trigger the service and all D-Bus calls will be terminated with error: "Call failed: Could not activate remote peer." But then all applications using D-Bus API will not work until you unmask the service using: "systemctl unmask rhsm.service"

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-44525 A vulnerability was found in subscription-manager that allows local privilege escalation due to inadequate authorization. The D-Bus interface com.redhat.RHSM1 exposes a significant number of methods to all users that could change the state of the registration. By using the com.redhat.RHSM1.Config.SetAll() method, a low-privileged local user could tamper with the state of the registration, by unregistering the system or by changing the current entitlements. This flaw allows an attacker to set arbitrary configuration directives for /etc/rhsm/rhsm.conf, which can be abused to cause a local privilege escalation to an unconfined root.
History

Tue, 04 Mar 2025 03:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 22 Nov 2024 12:00:00 +0000


Mon, 16 Sep 2024 13:30:00 +0000


Subscriptions

Fedoraproject Fedora
Redhat Enterprise Linux Enterprise Linux Desktop Enterprise Linux Eus Enterprise Linux For Arm 64 Enterprise Linux For Arm 64 Eus Enterprise Linux For Ibm Z Systems Enterprise Linux For Ibm Z Systems Eus Enterprise Linux For Power Big Endian Enterprise Linux For Power Little Endian Enterprise Linux For Power Little Endian Eus Enterprise Linux For Scientific Computing Enterprise Linux Server Enterprise Linux Server Aus Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions Enterprise Linux Server Tus Enterprise Linux Server Update Services For Sap Solutions Enterprise Linux Update Services For Sap Solutions Enterprise Linux Workstation Rhel Aus Rhel E4s Rhel Eus Rhel Tus Subscription-manager
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-11-20T07:23:33.825Z

Reserved: 2023-07-25T10:15:36.274Z

Link: CVE-2023-3899

cve-icon Vulnrichment

Updated: 2024-08-02T07:08:50.678Z

cve-icon NVD

Status : Modified

Published: 2023-08-23T11:15:07.573

Modified: 2024-11-21T08:18:19.280

Link: CVE-2023-3899

cve-icon Redhat

Severity : Important

Publid Date: 2023-08-22T14:00:00Z

Links: CVE-2023-3899 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses